Pannaon Wongsanansin และ Poj Kulvanich. (2011) Modification of tapioca starch by hydroxypropyl substitution, crosslinking with phosphate and pregelatinization for use as a matrix for sustained release dosage forms. Chulalongkorn University:ม.ป.ท.Pannaon Wongsanansin และ Poj Kulvanich. 2011. Modification of tapioca starch by hydroxypropyl substitution, crosslinking with phosphate and pregelatinization for use as a matrix for sustained release dosage forms. ม.ป.ท.:Chulalongkorn University;Pannaon Wongsanansin และ Poj Kulvanich. Modification of tapioca starch by hydroxypropyl substitution, crosslinking with phosphate and pregelatinization for use as a matrix for sustained release dosage forms. ม.ป.ท.:Chulalongkorn University, 2011. Print.